The answer is B: international travel
Answer:
Gorbachev's decision to loosen the Soviet yoke on the countries of Eastern Europe created an independent, democratic momentum that led to the collapse of the Berlin Wall in November 1989, and then the overthrow of Communist rule throughout Eastern Europe.
Explanation:
Answer:
As the electorate expanded, the political parties evolved to mobilize the growing mass of voters as the means of political control. Political parties became institutionalized to accomplish this essential task. ... The number of independent or third-party members of Congress or of state legislatures is extremely low